Cambridge University Press (CUP)
0263-5933
1473-7116
Cơ quản chủ quản: N/A
Các bài báo tiêu biểu
An alternative astronomical calibration of the lower Pleistocene timescale based on ODP Site 677ABSTRACT Ocean Drilling Program (ODP) Site 677 provided excellent material for high resolution stable isotope analysis of both benthonic and planktonic foraminifera through the entire Pleistocene and upper Pliocene. The oxygen isotope record is readily correlated with the SPECMAP stack (Imbrie et al. 1984) and with the record from DSDP 607... ...
Tập 81 Số 4 - Trang 251-261 - 1990
The Devonian tetrapodAcanthostega gunnariJarvik: postcranial anatomy, basal tetrapod interrelationships and patterns of skeletal evolutionABSTRACT The postcranial skeleton ofAcanthostega gunnari from the Famennian of East Greenland displays a unique, transitional, mixture of features conventionally associated with fishand tetrapod-like morphologies. The rhachitomous vertebral column has a primitive, barely differentiated atlas-axis complex, encloses an unconstricted notochord... ...
Tập 87 Số 3 - Trang 363-421 - 1996
Cretaceous foraminiferal morphogroup distribution patterns, palaeocommunities and trophic structures: a case study from the Sergipe Basin, BrazilForaminiferal studies have been used in palaeo-environmental reconstructions of the marine Cretaceous succession (upper Aptian to Maastrichtian) of the Sergipe Basin, in northeastern Brazil. The foraminiferal assemblages show broadly three types of response to changes in environment: (1) variations in morphotypes of the taxa present; (2) changes in specific and generic diversity; and (3) c... ...
Tập 81 Số 3 - Trang 221-246 - 1990
Regional framework and geodynamic evolution of the Indus-Tsangpo suture zone in the Ladakh HimalayasABSTRACT The Indus-Tsangpo suture and its adjoining tectonic zones are well displayed in the Ladakh Himalayas where four tectonic zones have been distinguished, viz . the Zanskar, Indus suture, Shyok suture and Karakoram zones. The Zanskar zone is made up of Precambrian basement of the Zanskar crystalline complex and overlying Phanerozic se... ...
Tập 72 Số 2 - Trang 89-97 - 1981
Distribution of anatomically-preserved floras in the Lower Carboniferous in Western EuropeABSTRACT Twelve localities of Lower Carboniferous strata in Scotland (Loch Humphrey Burn, Glenarbuck, Pettycur, Oxroad Bay and the Berwickshire localities of Cove, Burnmouth, Gavinton, Edrom, Foulden) and in France (Esnost, Roannais, Montagne Noire) have been investigated with particular regard to their anatomically preserved floras. New data on the composition and ... ...
Tập 75 Số 3 - Trang 311-340 - 1984
Collision zone between the Kohistan arc and the Asian plate in NW PakistanABSTRACT This paper describes the suture zone between the Asian plate and the accreted Kohistan island arc in the Chitral district of NW Pakistan. The southern part of the Asian plate consists of two tectonic units separated by the N-dipping Reshun fault. The northwestern unit comprises Devonian carbonates and quartzites overlain by Devonian to Permi... ...
Tập 76 Số 4 - Trang 463-479 - 1985
Exploring the plutonic-volcanic link: a zircon U-Pb, Lu-Hf and O isotope study of paired volcanic and granitic units from southeastern AustraliaAbstract The relationship between plutonic and volcanic rocks is central to understanding the geochemical evolution of silicic magma systems, but it is clouded by ambiguities associated with unravelling the plutonie record. Here we report an integrated U-Pb, O and Lu-Hf isotope study of zircons from three putative granitic-volcanic rock pairs from the Lachlan Fold B... ...
Tập 97 Số 4 - Trang 337-355 - 2008
A new large lamniform shark from the uppermost Gearle Siltstone (Cenomanian, Late Cretaceous) of Western AustraliaAbstract An association of 100 teeth and 15 vertebrae from a large, lamniform shark, is described from the uppermost part of the Gearle Siltstone in the Giralia Anticline, Southern Carnarvon Basin, Western Australia. The material represents a new genus and species: Cardabiodon ricki . The taxon is referred to the new family Cardabiodontidae... ...
Tập 90 Số 1 - Trang 49-66 - 1999
Experimental taphonomy: silicification of plants in Yellowstone hot-spring environmentsABSTRACT During experiments conducted within the vent pool of Medusa Geyser, Norris Geyser Basin, Yellowstone National Park, USA, amorphous opaline silica (opal-A) was deposited on/within plant tissues within 30 days of immersion. Initially, deposition created inter/intra-cellular films which lined cell walls plus intercellular colloid suspensions (sols) of opal-A n... ...
Tập 94 Số 4 - Trang 503-521 - 2003
Structure, generation and preservation of upward fining, braided stream cycles in the Old Red Sandstone of ScotlandABSTRACT A sequence of upward fining cycles contain braid bar structures in the coarse member. Bars, medially placed in the stream are recognised either by radiating large foresets or by identifying bar tail sediments with converging dips to their foresets. Lateral bars are recognised by the growth of major sandstone sheets oblique to the direction of channel trend ... ...
Tập 71 Số 1 - Trang 29-46 - 1980